[PATCH] drm/sun4i: de3: Be explicit about supported modifiers

[Maxime Ripard]

On Sat, Jun 05, 2021 at 09:35:34AM +0200, Jernej Skrabec wrote:
> From: Piotr Oniszczuk <piotr.oniszczuk at gmail.com>
> 
> Currently only linear formats are supported in sun4i-drm driver, but
> SoCs like H6 supports AFBC variant of some of them in multiple cores
> (GPU, VPU, DE3). Panfrost already implements AFBC compression and is
> sometimes confused what should be default choice (linear, AFBC) if DRM
> driver is not explicit about modifier support (MiniMyth2 distro with
> MythTV app).
> 
> After some discussion with Daniel Stone on #panfrost IRC, it was decided
> to make modifiers in sun4i-drm explicit, to avoid any kind of guessing,
> not just in panfrost, but everywhere. In fact, long term idea is to make
> modifier parameter in drm_universal_plane_init() mandatory (non NULL).
> 
> Signed-off-by: Piotr Oniszczuk <piotr.oniszczuk at gmail.com>
> Signed-off-by: Jernej Skrabec <jernej.skrabec at gmail.com>

Applied, thanks
Maxime
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